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Ultra runs in South East

Find ultra runs in South East in 2026/2027 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

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Starting and finishing in Haslemere, this guided run features some of the best parts of the Serpent Trail and the Sussex Border Path.
  • Sun 29 Nov
  • £45
Haslemere, Surrey

Serpent Trail Ultra Run

Starting and finishing in Haslemere, this guided run features some of the best parts of the Serpent Trail and the Sussex Border Path.

  • 30 miles trail running
  • Beginner-friendly
  • Enter online
  • Hilly
  • Event village
  • Rural
  • Age 18 & over
Come and join in for the Snow Globe Gallop Bobble Hat Run, at this event you can earn yourself one of the incredible themed medals and, of course, a bobble hat!!
  • Sat 5 Dec
  • £21-£40
Staines, Surrey

The Snow Globe Gallop Bobble Hat Run

Come and join in for the Snow Globe Gallop Bobble Hat Run, at this event you can earn yourself one of the incredible themed medals and, of course, a bobble hat!!

  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
  • Families
  • Beginner-friendly
  • Event village
  • All ages
A new and unique concept where you decide how many loops you feel capable of on the day from 7km up to an ultra marathon! Push yourself further or go easy.
  • Sat 12 Dec
  • £26-£37
Gerrards Cross, Buckinghamshire

Running Tribe Races | Dec

A new and unique concept where you decide how many loops you feel capable of on the day from 7km up to an ultra marathon! Push yourself further or go easy.

  • 1 day multi terrain running
  • Beginner-friendly
  • Dogs allowed at venue
  • Enter online
  • Undulating
  • Hilly
  • Traffic free
  • Park
  • Rural
  • Public transport links
  • Age 16 & over
Welcome to the 6-hour Boxing Day Challenge, where you can run the distance of your choice on an out-and-back route along the River Thames, with fuel stations, bespoke medal and goody bag.
  • Sat 26 Dec
  • £16-£35
Egham, Surrey

Boxing Day Challenge

Welcome to the 6-hour Boxing Day Challenge, where you can run the distance of your choice on an out-and-back route along the River Thames, with fuel stations, bespoke medal and goody bag.

  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • Ultra run
  • + 1 more race
  • Families
  • Beginner-friendly
  • Event village
  • Age 12 & over
A fabulous 43-mile point-to-point race, well established as the season opener to the Ultra race calendar and always sells out. From the countryside along the Grand Union Canal into London.
  • Sat 9 Jan 2027
  • £85
Aylesbury, Buckinghamshire

Country to Capital Ultra

A fabulous 43-mile point-to-point race, well established as the season opener to the Ultra race calendar and always sells out. From the countryside along the Grand Union Canal into London.

  • 43 miles trail running + 1404 ft ascent
  • Recycling
  • Beginner-friendly
  • Chip timing
  • Enter online
  • GPS tracking
  • Undulating
  • Event village
  • Age 18 & over
  • Mon 4 May
  • £56
Winchester, Hampshire

BigWayRound - Winchester | 50K Ultra Marathon

  • 50 km trail running
  • Sat 9 - Sun 10 May
  • £35-£80
Reading, Berkshire

Goring Gap Trails

  • Ultra run 2
  • Long distance walk
  • Short walk 2
  • Half marathon
  • Sat 9 May
  • £118-£120
Chesham, Buckinghamshire

Chiltern Hills 100K

  • 100 km trail running
  • Sat 30 May
  • £63-£65
Maidenhead, Berkshire

Beat The Sunset 50K

  • 50 km multi terrain running
  • Sat 20 Jun
  • £68-£70
Milton Keynes, Buckinghamshire

Three Shires Way Ultra & Marathon | Ultra

  • 50 miles trail running + 1349 ft ascent
  • Fri 26 Jun
  • £133-£135
Polegate, East Sussex

The Longbridge 100 Backyard Ultra Summer

  • 4.17 miles trail running
  • Thu 6 - Sun 9 Aug
  • £595
London

The Thames Challenge

  • Ultra run 4
  • Sat 5 - Sun 6 Dec
  • £183-£185
Lewes, East Sussex

Winter On The Downs 100 Miles

  • 100 miles trail running
  • Sat 5 - Sun 6 Dec
  • £110-£112
Lewes, East Sussex

Winter On The Downs 55 Miles

  • 55 miles trail running

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